<http://schema.org/dateModified>
"2013-01-03T15:14:49-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Health_News/2013/01/03/Cold-as-big-a-threat-as-heat-to-elderly/UPI-96171357244089/?spt=hs&or=hn>